AU503196B2 - Neutron-gamma coal logging system - Google Patents
Neutron-gamma coal logging systemInfo
- Publication number
- AU503196B2 AU503196B2 AU26523/77A AU2652377A AU503196B2 AU 503196 B2 AU503196 B2 AU 503196B2 AU 26523/77 A AU26523/77 A AU 26523/77A AU 2652377 A AU2652377 A AU 2652377A AU 503196 B2 AU503196 B2 AU 503196B2
- Authority
- AU
- Australia
- Prior art keywords
- neutron
- gamma
- logging system
- coal
- coal logging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003245 coal Substances 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
- G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
- G01V5/10—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources
- G01V5/104—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting secondary Y-rays as well as reflected or back-scattered neutrons
Landscapes
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measurement Of Radiation (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/714,441 US4066892A (en) | 1976-08-16 | 1976-08-16 | Coal logging system |
USUS71444 | 1976-08-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2652377A AU2652377A (en) | 1979-01-04 |
AU503196B2 true AU503196B2 (en) | 1979-08-23 |
Family
ID=24870056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU26523/77A Expired AU503196B2 (en) | 1976-08-16 | 1977-06-28 | Neutron-gamma coal logging system |
Country Status (3)
Country | Link |
---|---|
US (1) | US4066892A (en) |
AU (1) | AU503196B2 (en) |
CA (1) | CA1062814A (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA795087B (en) * | 1978-10-02 | 1981-04-29 | Atomic Energy Authority Uk | Measurement of the ash content of coal |
US4510573A (en) * | 1981-05-06 | 1985-04-09 | Unc Nuclear Industries, Inc. | Method for X-ray fluorescence spectroscopy |
US4446369A (en) * | 1981-10-13 | 1984-05-01 | Mobil Oil Corporation | Method and system for radioactive assaying |
US4587422A (en) * | 1984-01-06 | 1986-05-06 | Bowers Craig R | Subsurface density testing method |
GB8523060D0 (en) * | 1985-09-18 | 1985-10-23 | Cogent Ltd | Coal analysis |
US4924099A (en) * | 1986-12-15 | 1990-05-08 | Exxon Production Research Company | Method and apparatus for monitoring a flowstream |
US20050139759A1 (en) * | 1999-01-04 | 2005-06-30 | Robert Pitts | Lifetime pulsed neutron/chlorine combination logging tool |
US7513305B2 (en) * | 1999-01-04 | 2009-04-07 | Weatherford/Lamb, Inc. | Apparatus and methods for operating a tool in a wellbore |
US7407006B2 (en) * | 1999-01-04 | 2008-08-05 | Weatherford/Lamb, Inc. | System for logging formations surrounding a wellbore |
US6825459B2 (en) | 1999-01-04 | 2004-11-30 | Weatherford/Lamb, Inc. | Dual compensated chlorine logging tool |
AU2001255282B2 (en) * | 2000-04-11 | 2005-07-14 | Welldog, Inc. | In-situ detection and analysis of methane in coal bed methane formations with spectrometers |
ES2286480T3 (en) * | 2002-12-10 | 2007-12-01 | Commonwealth Scientific And Industrial Research Organisation | RADIOGRAPHIC EQUIPMENT |
US7511266B1 (en) * | 2006-12-06 | 2009-03-31 | Bothner Ronald E | Irradiated formation tool (IFT) apparatus and method |
US20090045329A1 (en) * | 2007-08-16 | 2009-02-19 | Schlumberger Technology Corporation | Downhole Tools Having Combined D-D and D-T Neutron Generators |
US8347694B2 (en) * | 2008-07-15 | 2013-01-08 | Welker, Inc. | LNG collection system and method |
US20100124313A1 (en) * | 2008-11-16 | 2010-05-20 | Schlumberger Technology Corporation | Methods and apparatus to perform downhole x-ray fluorescence |
US20140319330A1 (en) * | 2011-10-21 | 2014-10-30 | Schlumberger Technology Corporation | Elpasolite scintillator-based neutron detector for oilfield applications |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3115579A (en) * | 1957-01-07 | 1963-12-24 | Texaco Inc | Radioactivity well logging for carbon determination |
US3509343A (en) * | 1967-08-21 | 1970-04-28 | Schlumberger Technology Corp | Measuring apparatus and method |
US3654467A (en) * | 1969-05-12 | 1972-04-04 | Schlumberger Technology Corp | Transplutonium neutron activation logging technique |
US3849646A (en) * | 1973-06-05 | 1974-11-19 | Texaco Inc | Inelastic neutron scattering methods to locate coal and oil shale zones |
-
1976
- 1976-08-16 US US05/714,441 patent/US4066892A/en not_active Expired - Lifetime
-
1977
- 1977-05-30 CA CA279,457A patent/CA1062814A/en not_active Expired
- 1977-06-28 AU AU26523/77A patent/AU503196B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4066892A (en) | 1978-01-03 |
AU2652377A (en) | 1979-01-04 |
CA1062814A (en) | 1979-09-18 |
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